/*
 * Copyright 2019 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "modules/skottie/src/effects/Effects.h"

#include "include/private/base/SkTPin.h"
#include "modules/skottie/src/Adapter.h"
#include "modules/skottie/src/SkottieValue.h"
#include "modules/sksg/include/SkSGColorFilter.h"
#include "modules/sksg/include/SkSGPaint.h"
#include "src/utils/SkJSON.h"

namespace skottie {
namespace internal {
namespace {
class FillAdapter final : public AnimatablePropertyContainer {
public:
    static sk_sp<FillAdapter> Make(const skjson::ArrayValue &jprops, sk_sp<sksg::RenderNode> layer,
        const AnimationBuilder &abuilder)
    {
        return sk_sp<FillAdapter>(new FillAdapter(jprops, std::move(layer), abuilder));
    }

    const auto &node() const
    {
        return fFilterNode;
    }

private:
    FillAdapter(const skjson::ArrayValue &jprops, sk_sp<sksg::RenderNode> layer, const AnimationBuilder &abuilder)
        : fColorNode(sksg::Color::Make(SK_ColorBLACK)),
          fFilterNode(sksg::ModeColorFilter::Make(std::move(layer), fColorNode, SkBlendMode::kSrcIn))
    {
        enum : size_t {
            // kFillMask_Index = 0,
            // kAllMasks_Index = 1,
            kColor_Index = 2,
            //   kInvert_Index = 3,
            // kHFeather_Index = 4,
            // kVFeather_Index = 5,
            kOpacity_Index = 6,
        };

        EffectBinder(jprops, abuilder, this).bind(kColor_Index, fColor).bind(kOpacity_Index, fOpacity);
        abuilder.dispatchColorProperty(fColorNode);
    }

    void onSync() override
    {
        auto c = static_cast<SkColor4f>(fColor);
        c.fA = SkTPin(fOpacity, 0.0f, 1.0f);

        fColorNode->setColor(c.toSkColor());
    }

    const sk_sp<sksg::Color> fColorNode;
    const sk_sp<sksg::ModeColorFilter> fFilterNode;

    ColorValue fColor;
    ScalarValue fOpacity = 1;
};
} // namespace

sk_sp<sksg::RenderNode> EffectBuilder::attachFillEffect(const skjson::ArrayValue &jprops,
    sk_sp<sksg::RenderNode> layer) const
{
    return fBuilder->attachDiscardableAdapter<FillAdapter>(jprops, std::move(layer), *fBuilder);
}
} // namespace internal
} // namespace skottie
